fix(discover): deploy/ directories indexed as duplicate source in full mode

[isc-tdyar]

deploy/ directories indexed as duplicate source in full mode, producing stale duplicate Class/Method rows

Discovered while querying a project that uses a deploy/ directory for build output. Queries like MATCH (c:Class {name:'Foo'}) returned multiple rows for the same class — one from the source file, one from the copy in deploy/.

Root cause

deploy and deployed were in FAST_SKIP_DIRS, which is only consulted in fast and moderate indexing modes. In the default full mode, FAST_SKIP_DIRS is not applied, so deploy/ was walked and indexed alongside source files. Any class that existed in both locations got duplicate rows in the graph with potentially stale data from the build copy.

// before: deploy/deployed only skipped in fast/moderate mode
static const char *FAST_SKIP_DIRS[] = { ..., ".vercel", ".netlify", NULL };

// after: always skipped
static const char *ALWAYS_SKIP_DIRS[] = { ..., ".vercel", ".netlify", "deploy", "deployed", NULL };

Fix

Move deploy and deployed from FAST_SKIP_DIRS to ALWAYS_SKIP_DIRS so they are excluded in all indexing modes.

Regression test

discover_deploy_excluded_full_mode in tests/test_discover.c — creates a temporary repo with src/, deploy/, and deployed/ subdirectories, runs discovery in full mode, and asserts only the file under src/ is returned (deploy and deployed are excluded).

[DeusData]

Thanks for the contribution — all gates are green including DCO, and the deploy/-directory duplication is a good catch. Will review when time allows.